ISSUE After changing stepper motor

General Discussion
1

Basic Information:

Printer Model: Anycubic is mega s
MCU / Printerboard: BTT SKR1.4 Turbo
Host / SBC
klippy.log
klippy.log.zip (208.7 KB)

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Describe your issue:

…My issue is that my Y axis stepper motor tries to move when homing but throw up error TMC ‘stepper_y’ reports error: DRV_STATUS: 801800a0 s2vsb=1(ShortToSupply_B!) olb=1(OpenLoad_B!) cs_actual=24 stst=1. I am assuming incorrect wiring but i am not sure as i have tried switching green and blue but same problem. Klippy log is attached. Appreciate any help!

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Using StepperOnline 1.8Degree 48mm 2A motor.

3

Have you tried with a different motor?
You may also check the wiring for damage.

I noticed that you use hold_current on the steppers. It’s not recommended. Besides that, the values are way to low: Calculating Driver Current Settings | Voron Documentation

1 Like
4

works as normal with old motors, tried without hold_current but no difference. Also went through the voron guide for driver current but all the same result. Error:
TMC ‘stepper_y’ reports error: DRV_STATUS: 801800a0 s2vsb=1(ShortToSupply_B!) olb=1(OpenLoad_B!) cs_actual=24 stst=1
All wiring is okay hence the original motor working perfectly fine.

6

Likely either a defective stepper or issues in the wiring / connectors.

StepperOnline usually offers datasheets with the respective wiring. Make sure not to mix up the phases. This can potentially damage your stepper drivers.

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